CN1642445A - A method of maintaining aseptic conditions in a juice plant in brief production stoppages - Google Patents

A method of maintaining aseptic conditions in a juice plant in brief production stoppages Download PDF

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Publication number
CN1642445A
CN1642445A CNA038061376A CN03806137A CN1642445A CN 1642445 A CN1642445 A CN 1642445A CN A038061376 A CNA038061376 A CN A038061376A CN 03806137 A CN03806137 A CN 03806137A CN 1642445 A CN1642445 A CN 1642445A
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CN
China
Prior art keywords
juice
steam
water
temperature
holding tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA038061376A
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Chinese (zh)
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CN1305416C (en
Inventor
K·维尔肯
L·-O·耶普松
S·维费尔德特
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Tetra Laval Holdings and Finance SA
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Tetra Laval Holdings and Finance SA
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Publication of CN1642445A publication Critical patent/CN1642445A/en
Application granted granted Critical
Publication of CN1305416C publication Critical patent/CN1305416C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/42Preservation of non-alcoholic beverages
    • A23L2/46Preservation of non-alcoholic beverages by heating
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/003Control or safety devices for sterilisation or pasteurisation systems
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A23L3/22Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus with transport through tubes

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  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

The present invention relates to a method for maintaining aseptic conditions in a juice plant in brief productional stoppages. The plant is of the type where juice concentrate is heated to a certain temperature in that steam is supplied to the concentrate. The juice concentrate is kept at this temperature in a holding tube (11) during a certain interval of time. The juice concentrate is thereafter diluted with water to the correct dilution degree. In brief production stoppages, the supply of juice concentrate, steam and water is shut off. The pressure in the plant is maintained in that a stop valve (28) closes and that steam is supplied in a small quantity through a by-pass conduit (8) placed on the steam conduit (6). The stop valve is placed downstream of the supply of water. The holding tube (11) which is insulated and connected to a heating loop (12) maintains the temperature of the product in the holding tube (11).

Description

The method that in of short duration stopping process, in system juice equipment, keeps germ-free condition
Technical field
The present invention relates to a kind of method that in of short duration stopping process, in system juice equipment, keeps germ-free condition; this system juice device fabrication juice; wherein when the time to concentrated juice supply steam; this concentrated juice is heated to specified temp; concentrated juice keeps this temperature in buffer cell in the given time period, and this concentrated juice is diluted with water to correct dilute strength subsequently.
Background technology
Juice is defined as such drink, and it 100% squeezes from fruit, vegetables or berry and do not comprise additive usually.The beverage of lower content typically refers to fruit drink or fruit drink.For the manufacturing of juice, from starting point, common technology is to squeeze concentrated juice from fruit or the fruit of wanting to use.
In the classification of itself, the prevailing juice beverage on market is an orange juice.Yet orange is not planted in the country of main consumption orange juice usually.Be transported to the cost of transportation of country of consumption in order to save orange juice from growth state, so must and transport this concentrated orange juice at country of origin's concentrated orange juice, concentrated orange juice only constitutes the 15-20% of final orange juice goods usually.The most common is that concentrated orange juice transports with freezing state.In country of consumption, the essential dilute with water of concentrated orange juice, promptly its must reconstruct so that regain its initial composition and concentration.Surpass 90% orange juice manufacturing in the world all in this manner.
The prevailing method that is used for reconstruct is with at large-scale jar in batches or make concentrated orange juice and water mix in specific treatment facility continuously.Subsequently, final orange juice is through pasteurization, cooling and be packaged in the consumer packages.The method that superthermal water directly is fed in the concentrated orange juice also is existing known.In this case, these goods cool off indirectly subsequently and are packaged in the consumer packages.
In addition, made by concentrated orange juice in the orange juice (being the reconstruct orange juice), target is to make local flavor near the local flavor of the orange juice of fresh squeezing, the local flavor when this normally consumes after squeezing at once.In this process, the quality of these two factor affecting orange juices of temperature and oxygen.In order to improve this goods, attempt to make that orange juice experiences heat treatment a little as much as possible, realize that importantly this orange juice has rational storage life simultaneously.This process also should so design, that is, make the effect of oxygen minimize.Oxygen makes the vitamin C oxidation also destroy, and has reduced the nutriment of orange juice thus.
Simultaneously, this process must have reasonably short as far as possible startup and downtime.This process should be flexibly, so that can not have to switch goods fast and simply under the big situation of losing at goods.This process also should be used for the manufacturing of dissimilar fruit or vegetables juice, and this juice comprises fiber.
A kind of method like this is described in US4684531.Steam supply is in concentrated juice, so that obtain pasteurizing temperature.Partly Xi Shi concentrated juice remains on this temperature in given interval.Subsequently, obtaining the required water yield of reconstituted juice adds wherein.Thereafter, final juice is packaged in the aseptic consumer packages.
As mentioned above, at the equipment that is used for making juice, may occur of short duration shutdown naturally, this is because filling machine is temporarily shut down.Reach in 15 minutes the process of of short duration shutdown this, it is crucial keeping germ-free condition in this equipment.
In other hot water joined system juice equipment in the concentrated juice, just the supply of concentrated juice and water ended, and the amount of the juice in surge tank is cooled to below the pasteurizing temperature if having time.For fear of after restarting, occurring temperature alarming immediately, in this case, the temperature signal conductively-closed.Yet this program relates to the risk that bulk article in blending tank or before it does not carry out pasteurization fully.
In the pasteurizing plant of the routine of making juice, use heat exchanger, goods circulate in Pasteurizer constantly in of short duration stopping process.Even in the work stopping process, this also relates to lot of energy consumption.
Goal of the invention
One object of the present invention is to provide a kind of method that keeps germ-free condition in system juice equipment, does not wherein exist these goods to fail to reach the risk of enough pasteurizing temperature.
Another object of the present invention is to, provide a kind of at work stopping period consumed energy and can be returned to the system juice equipment of operating position apace not.
Technical scheme
Can realize these and other purpose according to the present invention, wherein the method by the described type of preamble is limited with following characteristic, and in of short duration stopping process, this equipment makes the supply of concentrated juice, steam and water end; The stop valve that is arranged on the downstream of water supply is closed, and remains on the pressure in this equipment thus; Steam is fed in this equipment slightly via by-pass conduit; And surge tank is heat insulation and is connected on the heating circuit that this surge tank keeps this temperature of articles in this surge tank.
The preferred embodiments of the present invention are limited by the characteristic of dependent claims.
Description of drawings
Below the preferred embodiment that invention will be described in detail with reference to the attached drawing, in the accompanying drawings:
Fig. 1 show be used to make juice, fruit juice or fruit beverage the flow chart of equipment, wherein adopted method of the present invention.
The specific embodiment
Equipment shown in Figure 1 comprises the jar 1 of the juice that is used to concentrate.This concentrated juice is pumped into vapor steam blaster 3 by pump 2.Pump 2 is preferably positive-displacement pump, for example lobe impeller pump or screw pump.Flowmeter 5 is arranged on the conduit 4 between pump 2 and injector 3.
Injector 3 can be the described type of Swedish patent application SE 0004390-I.In injector 3, force a large amount of hole on the sleeve surface of steam under pressure through being arranged on pipe to enter concentrated juice, flow of articles is through the sleeve surface of this pipe.
Steam is fed in the injector 3 through steam conduit 6, and steam regulator valve 7 is arranged on this steam conduit 6.On steam conduit 6, also be provided with by-pass conduit 8, even when steam regulator valve 7 is closed, this by-pass conduit allows a spot of steam to enter injector 3.In manufacture process, (unshowned in the drawings) valve cuts out this by-pass conduit 8, so that can control the amount that is fed to the steam in this process exactly.
The steam that is fed in the injector 3 is in correct temperature, and this monitors by control system 9, and this control system guarantees that steam is in correct pressure, and guarantees that thus steam has required energy.In injector 3, concentrated juice is heated to about 85-115 ℃, and this depends on the type of processed juice and the type of the desirable storage life of end article.
Conduit 10 extends to holding tube 11 from the outlet of vapor steam blaster 3.In holding tube 11, goods remain on required pasteurizing temperature in particular time interval.This time interval can be 15-30 second, and this depends on the type of processed juice and the type of the desirable storage life of end article.
In principle, holding tube 11 comprises the spirality of certain-length or straight conduit, perhaps the combination of the spirality of certain-length and straight conduit.In this equipment of implementing method of the present invention, holding tube 11 is heat insulation and is connected to electrical heating loop 12.After holding tube 11, be provided with and make goods be passed into conduit 13 in this equipment.
Be in correct temperature in order to monitor these goods in remaining on holding tube 11 time, thermometer 14 is provided with and enters the position of holding tube 11 on conduit 10, and thermometer 15 is provided with the position of leaving holding tube 11 on conduit 13.
The goods of this moment preparing to carry out pasteurization are made of the concentrated juice of part dilution, and these goods this equipment of further flowing through enters blender 16.This blender 16 can be the described type of Swedish patent application SE 0103591-4.In blender 16, concentrated juice is injected in the current, and the direction of these current is opposite with the direction of concentrated juice stream, and mixed thereafter fluid stream is forced to change direction, mixes fast and efficiently so that realize.
The water that adds must be pasteurization or aseptic filtration.This water is suitably removed air, reduces amount of oxygen thus, (oxygen has adverse influence to the nutritional labeling and the fragrance of juice).By making water remove air, can eliminate the needs of in after-stage, removing the air in the juice in this process.When final juice carries out air when removing, exist the risk of the fragrance matter of loss part, this fragrance matter helps to make juice to have " fresher " local flavor.
Water joins in the blender 16 through conduit 17 by pump 18.Pump 18 is preferably and comprises conventional positive-displacement pump, for example lobe impeller pump or screw pump.On conduit 17, be provided with flowmeter 5 so that monitor the correct reconstruct of this juice.
In the conduit 20 that leaves blender 16, by reconstruct and pasteurization after juice partly cooled off this moment, this depends on the temperature of the water of supply.In the conduit 20 after blender, be provided with metrical instrument, be reconstructed with correct degree so that monitor this juice, the water yield of promptly having only juice to begin to have is supplied in this process.This metrical instrument is refractometer normally, but also can use densitometer.The juice of reconstruct leaves this equipment through conduit 22 improperly.
Thereafter, when needs, resultant articles is cooled at last.Leng Que needs depend on the state of mixing and the temperature that enters the water of blender 16 at last.For example, cool off at last at heat exchanger 23 middle grounds and carry out, wherein frozen water or cold water are fed to heat exchanger 23 through conduit 24.In the end before the cooling, conduit 20 is provided with stop valve 28.
The goods that are cooled are transported to aseptic surge tank 25 subsequently.Final juice leaves this surge tank through conduit 26, and is filled in the consumer packages in the filling machine 27 of certain form subsequently.According to employed pasteurizing temperature in this process, these goods are packaged in the package at room temperature or distribute in unbroken cold chain and sell.
When of short duration downtime of reaching 15 minutes, filling machine 27 is shut down, and this equipment must keep this state in stopping process, promptly do not have the risk that jeopardizes germ-free condition.
When temporary transient shutdown occurred, because pump 2 is shut down, the supply of concentrated juice was cut off.Because steam regulator valve 7 is closed, the supply of steam is cut off.Water pump 18 is correspondingly shut down, and in stopping process, does not supply water.
Because in the end the stop valve 28 on the conduit 20 before the cooling is closed, therefore can remain on the pressure in this equipment.Simultaneously, a certain amount of steam is fed in this system via the by-pass conduit of walking around steam regulator valve 7.Entering concentrated juice that a small amount of steam in this process also helps to guarantee to be arranged in vapor steam blaster 3 by this device in stopping process can not extrude through the aperture on the pipe box surface of injector conduit.
The juice that is arranged in holding tube 11 remains on required pasteurizing temperature at whole stopping process, and this is because electrical heating loop 12 these heat insulation holding tubes 11 of heating.Switching on and off by temperature indicator 14,15 of electrical heating loop controlled.Because the goods in the holding tube 11 keep pasteurizing temperature in stopping process, therefore not in the risk that restarts the incorrect warning of temperature afterwards, and this temperature signal does not need shielding.
When filling machine 27 puts into production again, when setting up stable state before, goods obtain from surge tank 25.This stop valve 28 is opened, and because inspissated juice liquid pump 2 and water pump 18 startups and cap relief valve 7 are opened, therefore starts the supply of this concentrated juice, steam and water subsequently once more.In the whole time period that of short duration work is shut down, this equipment does not consume any energy; Can realize apace restarting; And kept Products Quality.Of short duration work is shut down can not cause any loss.
Surpass 15 minutes if shut down, method of the present invention allows this equipment to fill water.Water injects at inspissated juice liquid pump 2 places, discharges from return conduit 22 once more.This can discharge water from system relatively apace after long work is shut down, and makes this equipment restart.
From above description, can find out significantly, the invention provides a kind of method that when of short duration work is shut down, in system juice equipment, keeps germ-free condition, and this equipment does not need to stop and cleans and sterilization again.This method also makes this equipment not consume any energy in stopping process, and this equipment can restart fast and reliably.

Claims (4)

1. method that in of short duration stopping process, in system juice equipment, keeps germ-free condition, this system juice device fabrication juice, wherein when the time to concentrated juice supply steam, this concentrated juice is heated to uniform temperature, concentrated juice keeps this temperature in holding tube (11) in the certain hour section, and this concentrated juice is diluted with water to correct dilute strength subsequently, it is characterized in that, in of short duration stopping process, this equipment makes the supply of concentrated juice, steam and water end; The stop valve (28) that is arranged on the downstream of water supply is closed, and remains on the pressure in this equipment thus; Steam is fed in this device slightly via by-pass conduit (8); And this holding tube (11) is heat insulation and is connected on the heating circuit (12) that this holding tube (11) keeps this temperature of articles in this holding tube (11).
2. the method for claim 1 is characterized in that, this steam is fed in this concentrated juice in injector (3).
3. the method according to any one of the preceding claims is characterized in that, this water is fed in this concentrated juice in continuous mixing device (16).
4. the method according to any one of the preceding claims is characterized in that, switching on and off by temperature indicator (14) and (15) of this heating circuit (12) controlled in of short duration stopping process.
CNB038061376A 2002-03-15 2003-03-13 A method of maintaining aseptic conditions in a juice plant in brief production stoppages Expired - Fee Related CN1305416C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE02007847 2002-03-15
SE0200784A SE521921C2 (en) 2002-03-15 2002-03-15 Method of maintaining aseptic conditions in a juice plant at short production stops

Publications (2)

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CN1642445A true CN1642445A (en) 2005-07-20
CN1305416C CN1305416C (en) 2007-03-21

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US (1) US7407682B2 (en)
EP (1) EP1489926B1 (en)
CN (1) CN1305416C (en)
AU (1) AU2003208692A1 (en)
BR (1) BR0308440A (en)
DE (1) DE60311078T2 (en)
DK (1) DK1489926T3 (en)
ES (1) ES2279097T3 (en)
SE (1) SE521921C2 (en)
WO (1) WO2003077685A1 (en)

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CN102730611A (en) * 2011-04-04 2012-10-17 克朗斯股份公司 Method for automatically testing a drink processing assembly
CN107202732A (en) * 2017-05-31 2017-09-26 齐鲁工业大学 A kind of simulation UHT processing systems heated based on micro liquid sample and its application

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US20110318463A1 (en) * 2009-09-17 2011-12-29 Bob White Systems, Inc. System and Method for Pasteurizing Milk
ES2552388T3 (en) * 2010-05-20 2015-11-27 Miteco Ag Installation and procedure for the pasteurization of at least one liquid
DE102010031477A1 (en) * 2010-07-16 2012-01-19 Krones Aktiengesellschaft Apparatus and method for blending and heat treating a liquid product
US20140377418A1 (en) * 2013-06-21 2014-12-25 Noble House, LLC Method and Apparatus for Hub and Spoke Aseptic Processing
US20170238580A1 (en) * 2014-11-11 2017-08-24 Pressed Juicery, LLC System and process for destroying c. botulinum spores in pressed beverage using thermal pascalization
CN107206114B (en) * 2015-03-13 2020-11-06 利乐拉瓦尔集团及财务有限公司 Method for reducing water consumption of a system for treating liquid or semi-liquid food products
JP6987059B2 (en) * 2015-12-18 2021-12-22 エスピーエックス フロウ テクノロジー デンマーク アクティーゼルスカブ How to clean the high temperature food processing line and food sterilization line

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN102730611A (en) * 2011-04-04 2012-10-17 克朗斯股份公司 Method for automatically testing a drink processing assembly
CN107202732A (en) * 2017-05-31 2017-09-26 齐鲁工业大学 A kind of simulation UHT processing systems heated based on micro liquid sample and its application

Also Published As

Publication number Publication date
US7407682B2 (en) 2008-08-05
CN1305416C (en) 2007-03-21
DK1489926T3 (en) 2007-04-10
EP1489926A1 (en) 2004-12-29
US20050233041A1 (en) 2005-10-20
WO2003077685A1 (en) 2003-09-25
DE60311078T2 (en) 2007-07-05
EP1489926B1 (en) 2007-01-10
SE0200784D0 (en) 2002-03-15
ES2279097T3 (en) 2007-08-16
DE60311078D1 (en) 2007-02-22
SE0200784L (en) 2003-09-16
SE521921C2 (en) 2003-12-16
AU2003208692A1 (en) 2003-09-29
BR0308440A (en) 2005-01-18

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